/* ─────────────────────────────────────────────────────────────────────────
   Apex Path LLC — "Topographic / Summit"
   Dark premium-tech aesthetic. Amber summit accent on near-black, with a
   sparing signal-lime. Display: Clash Display · Body: Switzer · Mono: JetBrains
   ───────────────────────────────────────────────────────────────────────── */

:root {
  --ink:        #0A0B0D;   /* canvas */
  --ink-2:      #101216;   /* raised surface */
  --ink-3:      #16191F;   /* card surface */
  --line:       #23272F;   /* hairlines */
  --line-soft:  #1a1d24;
  --fog:        #8A909B;   /* muted text */
  --fog-2:      #B7BDC7;
  --snow:       #F2F4F7;   /* primary text */

  --amber:      #F5B23D;   /* primary accent — molten gold */
  --amber-deep: #C8841B;
  --lime:       #C6FF3A;   /* secondary accent — used sparingly */

  --maxw: 1180px;
  --pad: clamp(1.25rem, 4vw, 3rem);

  --font-display: "Clash Display", "Switzer", system-ui, sans-serif;
  --font-body: "Switzer", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--ink);
  color: var(--snow);
  line-height: 1.6;
  font-size: clamp(1rem, .95rem + .25vw, 1.1rem);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

::selection { background: var(--amber); color: var(--ink); }

/* ─── Atmospheric background ──────────────────────────────────────────── */
.bg { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

.bg__contours {
  position: absolute; inset: -20%;
  background-image:
    repeating-radial-gradient(
      circle at 78% 18%,
      transparent 0,
      transparent 38px,
      rgba(245, 178, 61, .045) 39px,
      rgba(245, 178, 61, .045) 40px
    );
  mask-image: radial-gradient(circle at 78% 18%, #000 0%, transparent 65%);
  animation: drift 40s var(--ease) infinite alternate;
}

.bg__glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 80% 0%, rgba(245, 178, 61, .10), transparent 70%),
    radial-gradient(50% 40% at 0% 100%, rgba(198, 255, 58, .04), transparent 70%),
    radial-gradient(120% 100% at 50% -10%, #131722 0%, var(--ink) 55%);
}

.bg__grain {
  position: absolute; inset: 0; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes drift { to { transform: translate(-3%, 2%) scale(1.06); } }

/* ─── Layout helpers ─────────────────────────────────────────────────── */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(4.5rem, 9vw, 8rem) var(--pad);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 1.1rem;
}

.section__head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }

.section__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 1.4rem + 3vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -.02em;
}

.section__lead { color: var(--fog-2); max-width: 60ch; margin-top: 1.2rem; }

.link {
  color: var(--amber);
  border-bottom: 1px solid rgba(245,178,61,.35);
  transition: border-color .25s, color .25s;
}
.link:hover { color: var(--snow); border-color: var(--snow); }

/* ─── Buttons ────────────────────────────────────────────────────────── */
.btn {
  --bg: var(--amber);
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--font-mono);
  font-weight: 600; font-size: .85rem;
  letter-spacing: .04em;
  padding: .85em 1.4em;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: transform .3s var(--ease), background .25s, box-shadow .3s;
  will-change: transform;
}
.btn:hover { background: #FFC65A; box-shadow: 0 10px 40px -12px rgba(245,178,61,.6); }
.btn--lg { padding: 1.05em 1.7em; font-size: .92rem; }
.btn--sm { padding: .6em 1.05em; font-size: .78rem; }
.btn--ghost {
  background: transparent; color: var(--snow);
  border-color: var(--line);
}
.btn--ghost:hover { background: var(--ink-3); border-color: var(--amber); box-shadow: none; }
.btn__arrow { transition: transform .3s var(--ease); }
.btn:hover .btn__arrow { transform: translate(3px, -3px); }

/* ─── Nav ────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 1.5rem;
  padding: 1rem var(--pad);
  max-width: var(--maxw); margin: 0 auto;
  backdrop-filter: blur(0px);
  transition: backdrop-filter .3s, background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(10,11,13,.72);
  backdrop-filter: blur(14px) saturate(120%);
  border-bottom-color: var(--line-soft);
}
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -.01em; }
.brand__mark { color: var(--amber); flex: none; transition: transform .5s var(--ease); }
.brand:hover .brand__mark { transform: translateY(-2px) rotate(-4deg); }
.nav__links { display: flex; gap: 1.6rem; margin-left: auto; font-family: var(--font-mono); font-size: .82rem; letter-spacing: .02em; }
.nav__links a { color: var(--fog); position: relative; padding: .2rem 0; transition: color .25s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1px; width: 0;
  background: var(--amber); transition: width .3s var(--ease);
}
.nav__links a:hover { color: var(--snow); }
.nav__links a:hover::after { width: 100%; }
.nav .btn--sm { margin-left: .25rem; }
.nav__toggle { display: none; }

/* ─── Hero ───────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 7rem) var(--pad) 0;
  min-height: min(86vh, 760px);
  display: flex; flex-direction: column; justify-content: center;
}
.hero__inner { max-width: 880px; }
.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.8rem, 1.5rem + 7vw, 6.5rem);
  line-height: .96; letter-spacing: -.035em;
  margin: .3rem 0 1.6rem;
}
.hero__title span { display: block; }
.hero__title em { font-style: normal; color: var(--amber); position: relative; }
.hero__sub { max-width: 56ch; color: var(--fog-2); font-size: clamp(1.05rem, 1rem + .4vw, 1.3rem); }
.hero__sub .amp { font-family: var(--font-display); color: var(--amber); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

.hero__ridge {
  margin-top: clamp(2.5rem, 6vw, 5rem);
  width: 100%;
}
.hero__ridge svg { display: block; width: 100%; height: clamp(60px, 9vw, 120px); }
.hero__ridge path { fill: var(--ink-2); stroke: var(--line); stroke-width: 1; }

/* ─── Stats ──────────────────────────────────────────────────────────── */
.stats {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2rem, 4vw, 3rem) var(--pad);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line-soft);
  border-block: 1px solid var(--line-soft);
}
.stat { background: var(--ink); padding: clamp(1.5rem, 3vw, 2.2rem) clamp(1rem,2vw,1.6rem); }
.stat__num {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.4rem, 1.5rem + 3vw, 3.6rem);
  line-height: 1; letter-spacing: -.03em; color: var(--snow);
}
.stat:nth-child(1) .stat__num { color: var(--amber); }
.stat__label { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .06em; color: var(--fog); margin-top: .7rem; text-transform: uppercase; line-height: 1.4; }

/* ─── Service cards ──────────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
.card {
  position: relative; overflow: hidden;
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: clamp(1.6rem, 3vw, 2.4rem);
  transition: transform .4s var(--ease), border-color .4s, background .4s;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 80% at 100% 0%, rgba(245,178,61,.12), transparent 60%);
  opacity: 0; transition: opacity .4s;
}
.card:hover, .card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(245,178,61,.4);
  outline: none;
}
.card:hover::before, .card:focus-visible::before { opacity: 1; }
.card__no { font-family: var(--font-mono); font-size: .75rem; letter-spacing: .2em; color: var(--amber); margin-bottom: 1.1rem; }
.card__title { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.35rem, 1.1rem + 1vw, 1.7rem); letter-spacing: -.01em; }
.card__body { color: var(--fog-2); margin: .8rem 0 1.4rem; }
.card__tags { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; }
.card__tags li {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .03em;
  color: var(--fog); padding: .3em .7em; border: 1px solid var(--line); border-radius: 2px;
}
.card--accent { background: linear-gradient(165deg, rgba(245,178,61,.08), var(--ink-3) 55%); border-color: rgba(245,178,61,.25); }
.card--accent .card__title { color: var(--amber); }

/* ─── Split / Industries ─────────────────────────────────────────────── */
.section--split { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.split__text .btn { margin-top: 1.8rem; }
.industries { list-style: none; display: flex; flex-direction: column; }
.industries li {
  display: flex; align-items: baseline; gap: 1rem;
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.3rem, 1rem + 1.4vw, 2rem); letter-spacing: -.01em;
  padding: 1.1rem 0; border-bottom: 1px solid var(--line-soft);
  transition: padding-left .3s var(--ease), color .3s;
}
.industries li:first-child { border-top: 1px solid var(--line-soft); }
.industries li:hover { padding-left: .6rem; color: var(--amber); }
.industries__k { font-family: var(--font-mono); font-weight: 600; font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--fog); flex: none; min-width: 5.5rem; }
.industries li:first-child .industries__k { color: var(--lime); }

/* ─── Path / Process ─────────────────────────────────────────────────── */
.path { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; counter-reset: step; }
.path__step {
  position: relative; padding: 1.8rem 1.4rem;
  border: 1px solid var(--line); border-radius: 4px; background: var(--ink-2);
  transition: border-color .35s, transform .35s var(--ease);
}
.path__step::after {
  content: ""; position: absolute; top: 2.3rem; right: -1.1rem; width: 1.1rem; height: 1px;
  background: linear-gradient(90deg, var(--amber), transparent);
}
.path__step:last-child::after { display: none; }
.path__step:hover { border-color: rgba(245,178,61,.4); transform: translateY(-4px); }
.path__num { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .2em; color: var(--amber); }
.path__step h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.5rem; margin: .8rem 0 .5rem; }
.path__step p { color: var(--fog-2); font-size: .95rem; }

/* ─── About ──────────────────────────────────────────────────────────── */
.section--about { text-align: left; }
.about__statement {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.5rem, 1rem + 2.6vw, 2.8rem);
  line-height: 1.22; letter-spacing: -.02em; max-width: 900px;
  color: var(--fog-2);
}
.about__statement strong { color: var(--snow); font-weight: 600; }
.about__statement em { font-style: normal; color: var(--amber); }

/* ─── Contact ────────────────────────────────────────────────────────── */
.section--contact { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .5rem; }
.field label { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--fog); }
.field .opt { text-transform: none; letter-spacing: 0; color: var(--line); }
.field input, .field textarea {
  font-family: var(--font-body); font-size: 1rem;
  background: var(--ink-2); color: var(--snow);
  border: 1px solid var(--line); border-radius: 3px;
  padding: .85rem 1rem; resize: vertical;
  transition: border-color .25s, background .25s, box-shadow .25s;
}
.field input::placeholder, .field textarea::placeholder { color: #4b515c; }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--amber); background: var(--ink-3);
  box-shadow: 0 0 0 3px rgba(245,178,61,.12);
}
.field.invalid input, .field.invalid textarea { border-color: #E5484D; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__footer { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; margin-top: .4rem; }
.form__status { font-family: var(--font-mono); font-size: .82rem; }
.form__status.ok { color: var(--lime); }
.form__status.err { color: #E5484D; }
.btn.is-loading { opacity: .7; pointer-events: none; }

/* ─── Footer ─────────────────────────────────────────────────────────── */
.footer {
  max-width: var(--maxw); margin: 0 auto;
  padding: 2.5rem var(--pad) 3rem;
  border-top: 1px solid var(--line-soft);
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: .8rem; color: var(--fog);
}
.footer__brand { display: flex; align-items: center; gap: .55rem; color: var(--snow); font-family: var(--font-display); font-weight: 600; }
.footer__brand svg { color: var(--amber); }
.footer__copy { margin-left: auto; letter-spacing: .03em; }

/* ─── Reveal animations ──────────────────────────────────────────────── */
.reveal, .reveal-up { opacity: 0; }
.reveal { transform: translateY(18px); }
.reveal-up { transform: translateY(28px); }

.hero .reveal {
  animation: rise .9s var(--ease) forwards;
  animation-delay: calc(var(--d, 0) * .12s + .1s);
}
[data-d="0"] { --d: 0; } [data-d="1"] { --d: 1; } [data-d="2"] { --d: 2; }
[data-d="3"] { --d: 3; } [data-d="4"] { --d: 4; } [data-d="5"] { --d: 5; }

.reveal-up.in, .reveal.in:not(.hero *) { animation: rise .8s var(--ease) forwards; animation-delay: var(--rd, 0s); }

@keyframes rise { to { opacity: 1; transform: translateY(0); } }

/* ─── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .nav__links, .nav .btn--sm { display: none; }
  .nav__toggle {
    display: flex; flex-direction: column; gap: 5px; margin-left: auto;
    background: none; border: 0; cursor: pointer; padding: .4rem;
  }
  .nav__toggle span { width: 24px; height: 2px; background: var(--snow); transition: transform .3s, opacity .3s; }
  .nav.is-open .nav__toggle span:first-child { transform: translateY(7px) rotate(45deg); }
  .nav.is-open .nav__toggle span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .nav.is-open .nav__links {
    display: flex; flex-direction: column; gap: 1.2rem;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--ink); background: rgba(10,11,13,.985);
    backdrop-filter: blur(14px);
    padding: 1.5rem var(--pad) 2rem; border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -20px rgba(0,0,0,.8);
    font-size: 1.05rem;
  }
  .cards, .stats, .path { grid-template-columns: repeat(2, 1fr); }
  .path__step::after { display: none; }
  .section--split, .section--contact { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .cards { grid-template-columns: 1fr; }
  .path { grid-template-columns: 1fr; }
  .footer__copy { margin-left: 0; width: 100%; }

  /* Tighten the hero so the headline doesn't dominate small screens */
  .hero { min-height: auto; padding-top: clamp(2rem, 10vw, 3.5rem); }
  .hero__title { font-size: clamp(2.3rem, 1rem + 8vw, 3rem); }
  .hero__cta { gap: .75rem; }
  .hero__cta .btn { flex: 1 1 auto; justify-content: center; }
  .btn--lg { padding: .95em 1.3em; }
}

/* ─── Reduced motion ─────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .reveal, .reveal-up { opacity: 1 !important; transform: none !important; }
  .bg__contours { animation: none; }
}